Re: Almost back in business
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Re: Almost back in business



Hi Paul,

I am coming into this thread late and you are already getting tons of good advice, but after reading this thread I am a little suspicious that your timing is a bit retarded at low RPM, particulary after reading that a) previously you had a detonation problem (that is now gone) and b) you have the vacuum advance plugged.  Our cars need a lot of initial timing.  The tricky part is getting the right advance without tilting the scales the other way at higher RPM.  (BTW, this is the reason behind the trick to fill-in the advance slots halfway with weld as noted very well by DD in his Old Reliable book.)

Truth is you may have multiple small things going on so I am not suggesting timing as a silver bullet, but I would look into intial vs total advance on your mill at some point to see if it is contributing to a higher-than-desired temp reading.

Take care,

Jim

On Monday, December 15, 2014 9:26:01 AM UTC-5, Paul L. http://1962to1965mopar.ornocar.org/ml-lennemann63.html wrote:
My car originally had a 361.  I'm still running the original radiator, which is a two core.  I never had serious problems before just had to watch it on really hot days.   I'm running my timing at 32* all in with the vacuum advance blocked off.  This is the same as I ran before and what the engine builder suggested.  When things dry out here in a couple days I'll drive it again and see what happens.  Although the weather will be going back to more seasonal with temps in the 30's. (no heater)

Paul L.

On Thursday, December 11, 2014 9:05:38 PM UTC-6, Paul L. http://1962to1965mopar.ornocar.org/ml-lennemann63.html wrote:
I spent the last two days dropping my 440 back into the Sport Fury.  It has been sitting for the last 14 months due to a detonation problem and a broken piston.  The long time lapse was due to a machinist who had it for more than eight months without doing any work on it.  So I finally just went and picked it up.  Rich K. and Dodger recommended a machinist who is a Mopar guy, but he is also busy.  
The top land broke off of one piston and upon inspection discovered that, that had produced a big dent in the cylinder wall, which could result in a crack.  So it was recommended to sleeve that cylinder, which then means the others have to be bored.  As it was explained to me the cylinders adjacent to the sleeved one get distorted in the process so they need to be bored to bring them back to round so all the others need to be bored as well.
But at last it is ready.  As luck would have it the weather is cooperating and it hasn't been too cold in my unheated garage.  So if everything goes to plan I should be able to fire it up tomorrow.  And the weatherman is forecasting temps in the 50's for the next couple days so I might even be able to go for a bit of a cruise.  Wish me luck.

Paul L.

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